/* Narrow the stack according to the arguments given to scm_make_stack. */
SCM_VALIDATE_REST_ARGUMENT (args);
- while (n > 0 && !SCM_NULLP (args))
+ while (n > 0 && !scm_is_null (args))
{
inner_cut = SCM_CAR (args);
args = SCM_CDR (args);
- if (SCM_NULLP (args))
+ if (scm_is_null (args))
{
outer_cut = SCM_INUM0;
}